Home / 890,147.76-1,335,076.92-291,099.84

Finding the Fourth Proportional to 890,147.76, 1,335,076.92 and 291,099.84

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Solution

The fourth proportional to 890,147.76, 1,335,076.92 and 291,099.84 is: 436,602.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,147.76 : 1,335,076.92 = 291,099.84 : x
  2. Step 2: Convert to fraction form
    890,147.76/1,335,076.92 = 291,099.84/x
  3. Step 3: Cross multiply
    890,147.76x = 1,335,076.92 × 291,099.84
  4. Step 4: Simplify right side
    890,147.76x = 388,640,677,799.69
  5. Step 5: Solve for x
    x = 388,640,677,799.69/890,147.76
  6. Step 6: Final answer
    x = 436,602.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.